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Zoology - Porifera
Porifera
Term | Definition |
---|---|
What does the word "porifera" mean? | Pore bearer |
How do sponges feed? | Filter feeding - sponges filter water and remove nutrients to use for growth |
What is the osculum? | The osculum is the opening at the top of the sponge where water exits. |
What do ostia do? | Ostia are small holes on the sides of sponges where food and water enter. |
Where are epithelial cells found on the sponge? | Epithelial cells are found on the outside of the sponge |
What do choanocytes do? | Choanocytes trap nutrients and pull water into the sponge by moving their flagella |
What do amoebocytes do? | Amoebocytes help move nutrients, reproduction, and making spicules. |
What is the function of spicules? | Spicules form the hard support of the sponge and look like little spikes |
What does spongin do? | Spongin helps form the support structure of the sponge and is more flexible than spicules |
How do sponges reproduce? | Sexually or asexually |
How are sponges able to reproduce asexually? | Gemules, regeneration, and budding |
Sponges can make both sperm and egg cells so they are considered to be what? | Hermaphroditic |